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合成肽P30-50和P50-75相当于霍乱毒素(CT)B亚单位氨基酸序列30～50和50～75.本文研究了它们的口服免疫作用.免疫动物是对霍乱毒素敏感的雄性C57B1/6J小鼠,8周龄,体重19～25g,插管口
The synthetic peptides P30-50 and P50-75 are equivalent to the amino acid sequence of cholera toxin (CT) subunit B 30-50 and 50-75. Their oral immunological effects were studied in this paper. The immunized animals were cholera toxin-sensitive male C57B1 / 6J Mice, 8 weeks old, weighing 19 ~ 25g, intubation mouth